At 23:30 on December 4, 2021, with the last impeller firmly seated on the 100-meter-high tower, the Longyuan Jiangsu Dafeng H4 offshore wind power project was successfully concluded. 47 sets of 6.45MW offshore wind turbines are about to send a steady stream of clean electricity into the grid. Sany SCC19000TM crawler crane, as an important hoisting equipment, has undertaken the task of installing 6 wind turbines.

At the same time, not far from SCC19000TM, Sany SCC12000TM and SCC4000A are working for the Longyuan Jiangsu Dafeng H6 offshore wind power project, and huge "big windmills" have been erected along the coast to form a unique landscape.

Short time for offshore wind power hoisting

Offshore wind power hoisting is a complex system project. In the face of interference factors such as wind speed and swells, it must be steady. In order to have a suitable window period, all personnel are always preparing for battle, and it is common to wait for ten and a half days. At the same time, they have to keep an eye on it, because once the window period is reached, they must race against God.

The installation process of the 6.45MW wind turbine is complicated, and it is easy to shake the tower with the tower in the case of swelling. Therefore, construction equipment must be safe, stable and fast, and grasp the best hoisting opportunity. In addition, it is currently the last month of offshore wind power hoisting and rush installation, and all owners are accelerating construction. The efficiency of hoisting equipment is even more important.

Time for offshore wind power in China is ripe

According to Zhang Zhifang, project technical leader of China Energy Construction Jiangsu Power Construction No. 3 Company: “The rear counterweight suspension technology of Sany crawler crane is very suitable for construction operations in the narrow space of semi-submersible platforms. The equipment does not need to be repeatedly disassembled during rotation and walking. In the case of a short construction window, it is very helpful to improve the efficiency of hoisting construction."

Since the beginning of this year, domestic offshore wind power has continued to "rush to install", and China's offshore wind power has a solid foundation for large-scale development. Behind this proud achievement, not only the innovation of science and technology and the silent persistence of wind power people, but also the bright future of the construction machinery industry. Editor/Ma Xue